[un-cloak] {
    display: none;
}

#loader {
    margin: 0;
    padding: 0;
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.2);
    z-index: 999999;
    width: 100%;
    height: 100vh;
    overflow: hidden;
}

#loader b {
    display: block;
    text-align: center;
    padding: 12px;
    color: #000;
    position: relative;
    top: calc(50% + 50px);
}

.rotate-loading {
    width: 40px;
    height: 40px;
    position: absolute;
    left: calc(50% - 30px);
    top: 50%;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    border: 6px solid rgba(134, 134, 134, 0.56);
    border-top: 6px solid black;
    animation: rotate-loading 1s linear infinite;
}

@keyframes rotate-loading {
    0% {
        transform: rotate(0deg);
    }

    100% {
        /* 顺时针旋转360度 */
        transform: rotate(360deg);
    }
}